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java.lang.Objectorg.eclipse.persistence.descriptors.InterfacePolicy
org.eclipse.persistence.descriptors.TablePerClassPolicy
public class TablePerClassPolicy
Purpose: Provides the functionality to support a TABLE_PER_CLASS inheritance strategy. Resolves relational mappings and querying.
Field Summary | |
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protected java.util.HashMap<DatabaseMapping,DatabaseQuery> |
selectionQueriesForAllObjects
Selection queries from read all mappings will be cached and re-used. |
Fields inherited from class org.eclipse.persistence.descriptors.InterfacePolicy |
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childDescriptors, descriptor, implementorDescriptor, implementorDescriptorClassName, parentDescriptors, parentInterfaceNames, parentInterfaces |
Constructor Summary | |
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TablePerClassPolicy(ClassDescriptor descriptor)
INTERNAL: Create a new policy. |
Method Summary | |
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protected void |
addSelectionQuery(ForeignReferenceMapping cloneMapping,
ForeignReferenceMapping sourceMapping,
org.eclipse.persistence.internal.sessions.AbstractSession session)
INTERNAL: |
boolean |
isTablePerClassPolicy()
INTERNAL: |
void |
prepareChildrenSelectionQuery(DatabaseMapping sourceMapping,
org.eclipse.persistence.internal.sessions.AbstractSession session)
INTERNAL: This method is called from individual mappings during their initialization. |
protected void |
prepareManyToManySelectionQuery(ManyToManyMapping sourceMapping,
org.eclipse.persistence.internal.sessions.AbstractSession session)
INTERNAL: |
protected void |
prepareOneToManySelectionQuery(OneToManyMapping sourceMapping,
org.eclipse.persistence.internal.sessions.AbstractSession session)
INTERNAL: |
protected void |
prepareOneToOneSelectionQuery(OneToOneMapping sourceMapping,
org.eclipse.persistence.internal.sessions.AbstractSession session)
INTERNAL: |
protected void |
prepareSelectionQuery(DatabaseMapping sourceMapping,
org.eclipse.persistence.internal.sessions.AbstractSession session)
INTERNAL: The selection queries are created by cloning the source mapping, updating the necessary database fields on the mapping and then initializing the mapping to create the internal selection query. |
protected java.lang.Object |
selectAllObjects(ReadAllQuery query)
INTERNAL: Select all objects for a concrete descriptor. |
protected java.lang.Object |
selectOneObject(ReadObjectQuery query)
INTERNAL: Select one object of any concrete subclass. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected java.util.HashMap<DatabaseMapping,DatabaseQuery> selectionQueriesForAllObjects
Constructor Detail |
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public TablePerClassPolicy(ClassDescriptor descriptor)
Method Detail |
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protected void addSelectionQuery(ForeignReferenceMapping cloneMapping, ForeignReferenceMapping sourceMapping, org.eclipse.persistence.internal.sessions.AbstractSession session)
public boolean isTablePerClassPolicy()
isTablePerClassPolicy
in class InterfacePolicy
public void prepareChildrenSelectionQuery(DatabaseMapping sourceMapping, org.eclipse.persistence.internal.sessions.AbstractSession session)
selectAllObjects(ReadAllQuery)
,
selectOneObject(ReadObjectQuery)
protected void prepareManyToManySelectionQuery(ManyToManyMapping sourceMapping, org.eclipse.persistence.internal.sessions.AbstractSession session)
protected void prepareOneToManySelectionQuery(OneToManyMapping sourceMapping, org.eclipse.persistence.internal.sessions.AbstractSession session)
protected void prepareOneToOneSelectionQuery(OneToOneMapping sourceMapping, org.eclipse.persistence.internal.sessions.AbstractSession session)
protected void prepareSelectionQuery(DatabaseMapping sourceMapping, org.eclipse.persistence.internal.sessions.AbstractSession session)
protected java.lang.Object selectAllObjects(ReadAllQuery query)
selectAllObjects
in class InterfacePolicy
protected java.lang.Object selectOneObject(ReadObjectQuery query) throws DescriptorException
selectOneObject
in class InterfacePolicy
DescriptorException
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